Qantas has suspended a $50 million marketing deal with the tourism body, claiming its boss Geoff Dixon was leading a consortium trying to remove current Qantas management and buy the company out, The Daily Telegraph reports.

The airline's boss, Alan Joyce, reportedly wrote to federal Tourism Minister Martin Ferguson on Tuesday, telling him the national carrier was suspending all future dealings with Tourism Australia.

It is believed Mr Joyce warned the government Qantas would refuse to have any further dealings with Tourism Australia while Mr Dixon - a former Qantas chief executive - was chairman.